REPORT TO COUNCIL
SUBJECT
Title
Approve a $3,500,000 Increase in the Construction Contingency in the Construction Contract with Ranger Pipelines, Inc. for the Water Pollution Control Plant Site Preparation Project (PW21-35) to Mitigate HazardousMmaterials, and Approve Budget Modification No. 10
Report
EXISTING POLICY
Pursuant to Chapter 2.09 of the Sunnyvale Municipal Code, City Council approval is required for construction contracts exceeding $250,000.
ENVIRONMENTAL REVIEW
The project, which involves demolition, pipeline relocation and utility work to prepare the Water Pollution Control Plant for upcoming construction projects, has no additional impacts beyond those already described in the Master Plan Program Environmental Impact Report (PEIR). As the action being considered does not constitute any changes to the scope of the Project, no further environmental review is necessary.
BACKGROUND AND DISCUSSION
Capital Project 833210 (Secondary Treatment & Thickening/Dewatering - CAS Stage 1) is divided into three construction packages to group like-items together and sequence the work. This first construction package consists of grading, paving, routing utilities, demolishing existing structures and facilities, constructing a portion of secondary effluent pipeline, relocating process equipment, and providing temporary facilities to City staff. For this package, Council awarded a construction contract to Ranger Pipelines, Inc. in the amount of $6,091,315, and approved a 10% contingency in the amount of $609,132 on February 1, 2022 (RTC No. 22-0138).
Recently, the contractor has encountered a large volume of unanticipated hazardous materials. The old sedimentation tanks and the old primary control building contain lead, asbestos, and Polychlorinated Biphenyls (PCBs) in the coatings, building materials, and mechanical equipment. The hazardous materials at both of these locations must be abated before the existing facilities can be demolished to allow for constr...
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